
Trouble Possible
cause
Correction
3. Heavy sparking
under brushes causing
burning of commutator bars
(2) Breakdown in armature
winding. Check generator in operation and
inspect commutator after work* If heavy
brush sparking is observed during
operation of generator and burning of
separate bars on. commutator with
melting out of solder from bar risers are
detected, armature is ahorted (if solder
melts out) or its winding is open
(1) Unseated brushes, Check
working surface of brushes. If brushes
have non-ground (non-shiny) spots on
over 30 % of area, brushes are poorly
seated to commutator
(2) Damaged brushes, Check
brushes. Brushes can hardly be removed
from brush holders and have bright friction
spots on side surfaces
(3) Soiled commutator. Inspect
commutator. Black deposit or burning on
commutator surface
(4) Increased runout or loosened
bars of commutator. Random burning of
commutator bars is observed during
commutator inspection. Check
commutator for runout
(5) Short circuit in armature
winding, Burning of separate bars with
melting out of solder from risers of these
bars
Replace generator
Seat and grind brushes
Replace brushes
Wipe commutator with clean cloth
slightly moistened in gasoline. If soiling
persists, use emery cloth (of glass, grain
size up to 8) rotating armature by hand.
While doing this, raise brushes
Replace generator Replace
generator
Содержание M-14P
Страница 6: ...19 Engine M 14P Front View Figure 1...
Страница 7: ...20 Engine M 14P Rear View Figure 2...
Страница 27: ...40 Arrangement of Airborne Tools in Case Figure 1...
Страница 39: ......
Страница 44: ...57 Engine M 14P Test Run Chart Figure 201...
Страница 67: ...80...
Страница 163: ...176 Crankshaft Thrust Ball Bearing Front Cover Figure 1 Intermediate Crankcase Figure 2...
Страница 166: ...179 Intermediate Grankcase Front Portion Figure 3 Intermediate Crankcase Rear Portion Figure 4...
Страница 173: ...186 Front view Cylinder Figure 1 Rear view...
Страница 174: ...187 1 Inlet Valve 2 Outer Spring 3 Inner Spring 4 Split Retainer 5 Valve Plate Inlet Valve Figure 2...
Страница 178: ...191 Intake Pipe of Cylinders Nos 4 5 and 6 Figure 4 Piston Piston Rings and Piston Pin with Plugs Figure 5...
Страница 180: ...193 Timing Mechanism Schematic Diagram Figure 6 Cam Plate Figure 7...
Страница 189: ...Blower Longitudinal Section View Figure 1...
Страница 191: ...Rear view Mixture Collector Figure 2 Diffuser Figure 3...
Страница 194: ...1 Plate 2 Spring 3 Plate 4 Gear 5 Accessory Drive Shaft Blower Coupling Figure 4...
Страница 204: ...Oil Sump Figure 4...
Страница 216: ...Engine M 14P Gear Train Figure 1...
Страница 247: ...Carburetor AK 14P Operation Diagram Figure 1...
Страница 249: ......
Страница 267: ...OPERATIONS AND TECHNICAL REQUIREMENTS CORRECTIVE ACTIONS CH ECKED BY Carburetor AK 14P Right Side View Figure 201...
Страница 273: ...Carburetor Altitude Control Needle Position Versus Barometric Pressure Barometric Graph Figure 203...
Страница 274: ......
Страница 282: ......
Страница 283: ......
Страница 288: ...T t en 0 CO 0 T K D fi h0 Ol f 01 3 0 F4...
Страница 293: ......
Страница 309: ...SPARK PLUG SD 49SMM MAINTENANCE PRACTICES 1 LIST OF TASK CARDS Title Task Card Uo Removal 201 Installation 202...
Страница 344: ...Generator Electrical Connection Diagram Commutator Side View Figure 3 1 Main Pole 2 Interpole...
Страница 355: ......
Страница 358: ......